ballet dancers and wedge-shaped feet
Ballet dancers use different techniques when it comes to dancing en pointe; some are able to use the tips of their toes (header pic), others find they are only able to raise themselves into the required position by improvising (figs 1 and 2).
In these instances, the dancers have utilised the level side of their malformed big toes to achieve the desired balance and position. This practice has given the left foot of one dancer a distinctive wedge-shaped appearance (fig 1), and is as described by Paul Lawson when he examined the feet of the Somerton Man, who has long been suspected of being a ballet dancer by reason of his overdeveloped calves.
With thanks to Michelle Potter.
Header pic is Baryshnikov